BCL9 and ductal breast carcinoma in situ: As seen in Fig. 8a-c (dot plot on the top panel and histogram on the lower panel), BCL9-KD cells showed an increase in the expression of luminal marker CD24 compared to the control in DCIS.COM (77.27 % ± 0.20 % vs 90.77 % ± 3.26 %; p <0.05), while there was no change in SUM225 cells (data not shown).